This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Present participle of insert.

n. Something inserted or set in, such as lace in garments.

n. A setting in.

n. Something inserted or set in, as lace, etc., in garments.

"By no means does the film attempt to demonize the unions, but it does show the role they play in inserting loopholes into contracts designed to make it almost impossible to get rid of ineffective teachers."

insert   

alerting    asserting    averting    converting    disconcerting